Justification:
This species has undergone a population decline of more than 80% in the past 10 years due to habitat (marsh) destruction for urbanisation, agricultural pollution and the introduction of alien predators (Carmona, J and Elvira, B. pers comm).

It is listed in the Annexes II and IV of the European Union Habitats Directive and in the Appendix II of the Bern Convention. There have been introductions of the species into man-made marshes (Elvira, B. pers. comm).